Cover for a food container



FIG. 1 is a top plan view of a cover for a food container showing our new design; and,

FIG. 2 is a side elevational view of the cover for a food container of FIG. 1.

The broken lines shown in the drawings are included for the purpose of illustrating structural environment and form no part of the claimed design. 

The ornamental design for a cover for food container, as shown. 